Estimates the reciprocal condition number of a square matrix.
RCOND(a)
a |
- |
A square matrix. |
A real, the estimated reciprocal condition number.
W1: {{1, 2, 3},
{4, 5, 6},
{7, 8, 9}}
W2: {{1, 2, 3},
{4, 5, 6},
{7, 8, 0}}
rcond(W1) == 1.54198E-018
rcond(W2) == 0.0193548
If the input array is well conditioned, the reciprocal condition number is near 1. If the input is ill conditioned, the reciprocal condition number is near 0.
RCOND requires a square matrix. See COND to estimate the condition number of a